The article considers the task of estimating time transmission large data sets through a distributed management environment based on self-created neural network model and investigating properties this using statistical analysis methods. For initial analysis, metadata for successful file transfers in system was obtained, variables that affect transfer were transformed highlighted. Different samp...

In common Grid installations, the services responsible for storing big data chunks, replication of those data and indexing their availability are usually completely decoupled. And the task of synchronizing data is passed to either userlevel tools or separate services (like spiders) which are subject to failure and usually cannot perform properly if one of the underlying services fails too. The ...

without any doubt, one of the strategies to achieve knowledge-based economy is the transfer of high technologies and turning them into a competitive stable advantage for companies. technology readiness levels, as a determining factor for high-tech transfer, has not been taken into consideration in recent studies. in this paper the author seeks to identify and prioritize factors affecting the tr...

Natural convection heat transfer from a tube bundle in the indirect water bath heaters is investigated. A computer-code is used for the solution of the governing equations of mass, momentum and energy transfer based on the SIMPLE-C algorithm. Simulations are carried out for the gas pressure station heater of Kermanshah city with various tube bundle arrangements. In order to validate the numeric...

The mass transfer performance of a pulsed disc and doughnut column for extraction of samarium and gadolinium from aqueous nitrate solution with D2EHPA was investigated. The effects of operating parameters such as pulsation intensity, continuous and dispersed phase velocities on column performance were investigated. The axial dispersion model was used to obtain the overall mass transfer coef...

natural convective heat transfer of nano-fluid in porous media is present in many advanced engineering applications. in this work, this problem has been computationally simulated, using lbm. the configuration used includes a cold exterior region and hot interior cylinders with one-, two-, or three-cylinder arrangements. however, the effective area for heat transfer has been kept the same for al...

the use of solar collectors in combination with heat pipes is rapidly growing in recent years.heat pipes, as heat transfer components, have undeniable advantages in comparison with other alternatives. the most important advantage is their high rate of heat transfer at minor temperature differences. although there have been numerous studies on the heat analysis or first thermodynamic analysis of...

Spatial processing of speech sounds by the human auditory cortex was studied measuring neuromagnetic responses utilizing magnetoencephalography (MEG). Realistic spatial sound environment was produced using modern stimulus generation methodology utilizing head-related transfer functions (HRTFs). In order to compare localization of speech sounds to that of nonspeech, the stimulus set involved thr...